fix fabric8io#3307: updating the isReady method to not log a warning

CHANGELOG.md

@@ -13,6 +13,7 @@
 * Fix #3285: adding waiting for list contexts `Informable.informOnCondition`
 * Fix #3284: refined how builders are obtained / used by HasMetadataOperation
 * Fix #3314: Add more detailed information about what is generated by the CRD generator
+* Fix #3307: refined the support for `Readiable.isReady`
 
 #### Dependency Upgrade
 * Update Tekton Pipeline Model to v0.25.0
@@ -21,6 +22,10 @@
 * Fix #3291: Retrying the HTTP operation in case of IOException too
 * Fix #2712: Add support for watching logs in multi-container Controller resources (Deployments, StatefulSets, ReplicaSet etc)
 
+#### _**Note**_: Breaking changes in the API
+##### DSL Changes:
+- #3307 `Readiable.isReady` returns a boolean rather than a Boolean
+
 ### 5.5.0 (2021-06-30)
 
 #### Bugs

kubernetes-client/src/main/java/io/fabric8/kubernetes/client/dsl/Readiable.java

@@ -17,5 +17,9 @@
 
 public interface Readiable {
 
-  Boolean isReady();
+  /**
+   * Check if the resource is ready.  If no readiness check exists, this is just an existence check.
+   * @return true if the resource exists and is ready.
+   */
+  boolean isReady();
 }

kubernetes-client/src/main/java/io/fabric8/kubernetes/client/dsl/VisitFromServerGetWatchDeleteRecreateWaitApplicable.java

@@ -25,5 +25,6 @@ public interface VisitFromServerGetWatchDeleteRecreateWaitApplicable<T> extends
   Watchable<Watcher<T>>,
   Waitable<T, T>,
   VisitFromServerWritable<T>,
-  DryRunable<VisitFromServerWritable<T>> {
+  DryRunable<VisitFromServerWritable<T>>,
+  Readiable {
 }

kubernetes-client/src/main/java/io/fabric8/kubernetes/client/dsl/base/BaseOperation.java

@@ -950,8 +950,12 @@ public Readiness getReadiness() {
   }
 
   @Override
-  public final Boolean isReady() {
-    return getReadiness().isReady(get());
+  public final boolean isReady() {
+    T item = fromServer().get();
+    if (item == null) {
+      return false;
+    }
+    return getReadiness().isReady(item);
   }
 
   @Override

kubernetes-client/src/main/java/io/fabric8/kubernetes/client/dsl/internal/NamespaceVisitFromServerGetWatchDeleteRecreateWaitApplicableImpl.java

@@ -153,22 +153,15 @@ public Boolean delete() {
 
   @Override
   public HasMetadata get() {
+    HasMetadata meta = acceptVisitors(asHasMetadata(item), visitors);
     if (fromServer) {
-      HasMetadata meta = acceptVisitors(asHasMetadata(item), visitors);
       ResourceHandler<HasMetadata, ?> h = handlerOf(meta);
-      HasMetadata reloaded = h.reload(client, config, meta.getMetadata().getNamespace(), meta);
-      if (reloaded != null) {
-        HasMetadata edited = reloaded;
-        //Let's apply any visitor that might have been specified.
-        for (Visitor v : visitors) {
-          edited = h.edit(edited).accept(v).build();
-        }
-        return edited;
+      meta = h.reload(client, config, meta.getMetadata().getNamespace(), meta);
+      if (meta != null) {
+        return acceptVisitors(meta, visitors);
       }
-      return null;
-    } else {
-      return acceptVisitors(asHasMetadata(item), visitors);
     }
+    return meta;
   }
 
   @Override
@@ -243,13 +236,17 @@ protected Readiness getReadiness() {
   }
 
   @Override
-  public final Boolean isReady() {
-    return getReadiness().isReady(get());
+  public final boolean isReady() {
+    HasMetadata meta = fromServer().get();
+    if (meta == null) {
+      return false;
+    }
+    return getReadiness().isReady(meta);
   }
 
   @Override
   public HasMetadata waitUntilReady(long amount, TimeUnit timeUnit) {
-    HasMetadata meta = acceptVisitors(asHasMetadata(get()), visitors);
+    HasMetadata meta = get();
     ResourceHandler<HasMetadata, ?> h = handlerOf(meta);
     return h.waitUntilReady(client, config, meta.getMetadata().getNamespace(), meta, amount, timeUnit);
   }
@@ -262,12 +259,11 @@ public VisitFromServerWritable<HasMetadata> dryRun(boolean isDryRun) {
   @Override
   public HasMetadata waitUntilCondition(Predicate<HasMetadata> condition, long amount,
     TimeUnit timeUnit) {
-    HasMetadata meta = acceptVisitors(asHasMetadata(get()), visitors);
+    HasMetadata meta = get();
     ResourceHandler<HasMetadata, ?> h = handlerOf(meta);
     return h.waitUntilCondition(client, config, meta.getMetadata().getNamespace(), meta, condition, amount, timeUnit);
   }
 
-
   private static HasMetadata acceptVisitors(HasMetadata item, List<Visitor> visitors) {
     ResourceHandler<HasMetadata, ?> h = handlerOf(item);
     VisitableBuilder<HasMetadata, ?> builder = h.edit(item);

kubernetes-client/src/main/java/io/fabric8/kubernetes/client/dsl/internal/NamespaceVisitFromServerGetWatchDeleteRecreateWaitApplicableListImpl.java

@@ -140,7 +140,7 @@ private static void logAsNotReady(Throwable t, HasMetadata meta) {
   }
 
   @Override
-  public Boolean isReady() {
+  public boolean isReady() {
     for (final HasMetadata meta : acceptVisitors(get(), visitors)) {
       if (!getReadiness().isReady(meta)) {
         return false;

kubernetes-tests/src/test/java/io/fabric8/openshift/client/server/mock/DeploymentConfigTest.java

@@ -321,15 +321,28 @@ void testIsReady() {
       .endCondition()
       .withReplicas(1).withAvailableReplicas(1)
       .endStatus().build();
+
+    // When using a resource, it should still consult the server
+    boolean result =  client.resource(deploymentConfig).isReady();
+
+    // Then
+    assertFalse(result);
+
     server.expect().get().withPath("/apis/apps.openshift.io/v1/namespaces/ns1/deploymentconfigs/dc1")
       .andReturn(HttpURLConnection.HTTP_OK, deploymentConfig)
       .always();
 
     // When
-    boolean result =  client.deploymentConfigs().inNamespace("ns1").withName("dc1").isReady();
+    result =  client.deploymentConfigs().inNamespace("ns1").withName("dc1").isReady();
 
     // Then
     assertTrue(result);
+
+    // When missing
+    result =  client.deploymentConfigs().inNamespace("ns1").withName("dc2").isReady();
+
+    // Then
+    assertFalse(result);
   }
 
   private DeploymentConfigBuilder getDeploymentConfig() {